Which expression is identical to cos^2theta(1 + tan^2theta)?

  1. sin^2theta
  2. 1
  3. sec^2theta
  4. cos^2theta
Answer

B) 1

Using sin^2theta + cos^2theta = 1 and the definitions of the ratios, cos^2theta(1 + tan^2theta) = 1. SLO M-09-B-23 · Knowledge

Mathematics MCQ · More Trigonometric Identities MCQs · Practise